Histopathology and Cytology of
Poultry Diseases By Ivan Dinev, DVM, PhD
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TIBIAL DYSCHONDROPLASIA
Fig. 1. Longitudinal cross-section, proximal tibia, broiler chicken. Growth and buildup of prehypertrophic cartilage. There is no distinct border between proliferating and hypertrophic cartilage. H/E, Bar = 50 µm.
Fig. 2. Flow of abnormal masses of prehypertrophic cartilage, sometimes occupying the entire metaphysis. There is no adequate blood supply, only single blood vessels penetrating from the metaphysis among the abnormal cartilage. H/E, Bar = 35 µm.
Fig. 3. Subperiosteal dysplasia (d) of prehypertrophic cartilage in the proximal tibia region, resulting in bone deformation. H/E, Bar = 100 µm.
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